EP2169893A3 - Bestimmung eines Anfangspunktes des FFT Fensters in einem OFDM Empfänger - Google Patents

Bestimmung eines Anfangspunktes des FFT Fensters in einem OFDM Empfänger Download PDF

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Publication number
EP2169893A3
EP2169893A3 EP09252278A EP09252278A EP2169893A3 EP 2169893 A3 EP2169893 A3 EP 2169893A3 EP 09252278 A EP09252278 A EP 09252278A EP 09252278 A EP09252278 A EP 09252278A EP 2169893 A3 EP2169893 A3 EP 2169893A3
Authority
EP
European Patent Office
Prior art keywords
fft
section
interval
determination
starting point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09252278A
Other languages
English (en)
French (fr)
Other versions
EP2169893B1 (de
EP2169893A2 (de
Inventor
Hidetoshi c/oSony Coriporation Kawauchi
Masayuki c/o Sony Corportion Hattori
Takashi c/o Sony Corportation Yokokawa
Kazuhiro c/o Sony Corportion Shimizu
Kazuhisa c/o Sony Corporation Funamoto
Toshiyuki Miyauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP2169893A2 publication Critical patent/EP2169893A2/de
Publication of EP2169893A3 publication Critical patent/EP2169893A3/de
Application granted granted Critical
Publication of EP2169893B1 publication Critical patent/EP2169893B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • H04L27/26526—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/364—Delay profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
EP09252278A 2008-09-30 2009-09-25 Bestimmung eines Anfangspunktes des FFT Fensters in einem OFDM Empfänger Active EP2169893B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008253299A JP4655241B2 (ja) 2008-09-30 2008-09-30 受信装置、受信方法、およびプログラム

Publications (3)

Publication Number Publication Date
EP2169893A2 EP2169893A2 (de) 2010-03-31
EP2169893A3 true EP2169893A3 (de) 2011-01-12
EP2169893B1 EP2169893B1 (de) 2012-02-15

Family

ID=41449927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09252278A Active EP2169893B1 (de) 2008-09-30 2009-09-25 Bestimmung eines Anfangspunktes des FFT Fensters in einem OFDM Empfänger

Country Status (8)

Country Link
US (1) US8437426B2 (de)
EP (1) EP2169893B1 (de)
JP (1) JP4655241B2 (de)
KR (1) KR101603342B1 (de)
CN (1) CN101714966B (de)
AT (1) ATE546004T1 (de)
BR (1) BRPI0903478A2 (de)
RU (1) RU2444136C2 (de)

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JP4755077B2 (ja) * 2006-12-22 2011-08-24 富士通セミコンダクター株式会社 伝送モード、ガード長検出回路とその方法
JP4631955B2 (ja) 2008-09-30 2011-02-16 ソニー株式会社 情報処理装置および方法、表示装置、並びにプログラム
US20100302930A1 (en) * 2009-05-31 2010-12-02 Qualcomm Incorporated Low Power Quality-Energy Scalable OFDMA Baseband Design
JP5284891B2 (ja) * 2009-06-26 2013-09-11 京セラ株式会社 通信装置及び遅延量検出方法
US8498298B2 (en) * 2009-12-22 2013-07-30 Lg Electronics Inc. Digital broadcasting system and method for transmitting and receiving digital broadcast signal
JP5530238B2 (ja) * 2010-04-15 2014-06-25 パイオニア株式会社 受信装置及び受信方法
JP2012204941A (ja) * 2011-03-24 2012-10-22 Toshiba Corp 受信装置および受信方法
CN103733548B (zh) * 2011-09-05 2016-08-24 三菱电机株式会社 通信领域的接收装置和接收方法
TWI470980B (zh) * 2012-12-26 2015-01-21 Mstar Semiconductor Inc 解碼方法及多媒體播放系統
GB2512126A (en) * 2013-03-21 2014-09-24 Sony Corp Infrastructure equipment, Mobile communications network, system and method
RU2582590C1 (ru) * 2014-12-19 2016-04-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный университет систем управления и радиоэлектроники" Способ оценки сдвига частоты для систем связи, использующих ofdm сигналы
KR102472991B1 (ko) * 2016-01-27 2022-12-01 엘지전자 주식회사 시간 효율성 증대를 위한 신호의 적응적 송수신 방법 및 이를 위한 장치
US10917278B2 (en) * 2017-04-28 2021-02-09 Nokia Technologies Oy Frequency-domain transmitters and receivers which adapt to different subcarrier spacing configurations
US11329859B2 (en) * 2018-02-27 2022-05-10 Mitsubishi Electric Corporation Wireless transmitter, wireless receiver, wireless communication system, control circuit, and storage medium
CN113473348B (zh) * 2021-07-26 2023-03-24 深圳市冠旭电子股份有限公司 扫频音源定位方法、音频设备品质测试方法、系统及设备

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JP2000332727A (ja) * 1999-05-21 2000-11-30 Toshiba Corp Ｏｆｄｍ受信装置
EP1416693A2 (de) * 2002-10-28 2004-05-06 Sony United Kingdom Limited Symboltaktrückgewinnung in einem Mehrträgerempfänger
JP2004336279A (ja) * 2003-05-06 2004-11-25 Toshiba Corp Ｏｆｄｍ受信装置および受信方法
EP1624602A1 (de) * 2003-05-12 2006-02-08 Mitsubishi Denki Kabushiki Kaisha Demodulationseinrichtung und demodulationsverfahren
EP1814274A1 (de) * 2006-01-30 2007-08-01 Sony Corporation OFDM-Demodulator, Empfänger und Verfahren

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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2000332727A (ja) * 1999-05-21 2000-11-30 Toshiba Corp Ｏｆｄｍ受信装置
EP1416693A2 (de) * 2002-10-28 2004-05-06 Sony United Kingdom Limited Symboltaktrückgewinnung in einem Mehrträgerempfänger
JP2004336279A (ja) * 2003-05-06 2004-11-25 Toshiba Corp Ｏｆｄｍ受信装置および受信方法
EP1624602A1 (de) * 2003-05-12 2006-02-08 Mitsubishi Denki Kabushiki Kaisha Demodulationseinrichtung und demodulationsverfahren
EP1814274A1 (de) * 2006-01-30 2007-08-01 Sony Corporation OFDM-Demodulator, Empfänger und Verfahren

Also Published As

Publication number Publication date
CN101714966A (zh) 2010-05-26
US8437426B2 (en) 2013-05-07
BRPI0903478A2 (pt) 2010-07-20
KR101603342B1 (ko) 2016-03-14
KR20100036979A (ko) 2010-04-08
ATE546004T1 (de) 2012-03-15
RU2009136114A (ru) 2011-04-10
CN101714966B (zh) 2013-06-19
JP4655241B2 (ja) 2011-03-23
JP2010087750A (ja) 2010-04-15
RU2444136C2 (ru) 2012-02-27
EP2169893B1 (de) 2012-02-15
US20100080330A1 (en) 2010-04-01
EP2169893A2 (de) 2010-03-31

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